ARAG BRAVO30 Series User guide

Software No. 54
GB
46730X46730X
46730X46730X
46730X
SPRAY CONTROL
USE AND MAINTENANCEUSE AND MAINTENANCE
USE AND MAINTENANCEUSE AND MAINTENANCE
USE AND MAINTENANCE

2
ATTENTION!
This device is for controlling the ARAG general, section and
adjustment valves installed on agricultural machines used for
weeding and spraying.
Please read the instructions contained in this handbook carefully.
ARAG cannot be held liable for damage caused by improper installa-
tion or use.
This equipment comes within the limits provided for by EN 50081-1
and EN 50082-1 concerning radio-frequency interference.
PRECAUTIONS!
In order to safeguard the functionality of the BRAVO30X the following
instructions must be observed:
- Do not spray water on the equipment.
- Do not use solvent or benzenes to clean the outer parts of the
container.
- Observe the foreseen power supply voltage (12 Vdc).
- When arc welding, make sure the BRAVO30X power supply is
disconnected. If necessary, disconnect the leads of the tractor
battery.
- Use only genuine ARAG spare parts and accessories.
The illustrations and technical data contained in this publication refer to the
date of printing. ARAG reserve the right to modify the specifications and
instructions at any time without notice.
For any requests for spare parts or after-sales service, please call your
ARAG Dealer or call the ARAG Technical Service on [phone].

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Table of Contents
Table of contents .................................................................................................... 3
Introduction............................................................................................................. 4
Composition of Kit .................................................................................................. 4
Overall dimensions ................................................................................................ 5
Technical and operating particulars ..................................................................... 5
Main assembly diagram......................................................................................... 6
Control panel illustration ....................................................................................... 6
Description of keys and symbols ........................................................................... 7
Controlkeys ............................................................................................................ 7
Adjustmentkeys...................................................................................................... 8
User programming................................................................................................ 10
Introduction.......................................................................................................................... 10
Calculating the wheel constant .......................................................................................... 10
Wheel constant menu .......................................................................................................... 11
Manual setting ...................................................................................................................... 11
Automatic setting .................................................................................................................11
Variation in the density factory of the product sprayed ................................................... 12
Density programming menu ............................................................................................... 12
Automatic density calibration............................................................................................. 12
Nozzle delivery rate ............................................................................................................. 13
Settings preliminary to treatment ....................................................................... 13
Field number ........................................................................................................................ 13
Resetting the field counters ............................................................................................... 14
Setting the amount of liquid placed in the tank ................................................................. 14
Filling up by means of the flowmeter ................................................................................... 14
Selecting the nozzle ............................................................................................................14
Valves with calibrated returns ........................................................................................... 15
Setting the calibrated returns ............................................................................................ 16
Treatment with automatic control...................................................................................... 16
Setting the litres/hectare to distribute............................................................................. 16
Setting the distance between rows ................................................................................ 16
Starting treatment in automatic ................................................................................... 17
Treatment with manual control .......................................................................................... 17
Foam marker ....................................................................................................................... 17
Displaying the counters ...................................................................................................... 18
Printing the counters .......................................................................................................... 18
Operating errors ................................................................................................... 19
Appendix............................................................................................................... 21
Relationship between ISO nozzle type and delivery rate.................................................. 21
Troubleshooting .................................................................................................... 22
Terms of warranty................................................................................................. 23

4
Technical and operating particulars
Description Value
Display custom LCD, backlit blue
Power supply voltage 12 Vdc ±10%
Consumption (not including valves) 200 mA
Working temperature 0° ÷ +70 °C
Distance travelled 0.001 ÷ 9999 km
Working time 1min ÷ 9999 ore
Speed 0.1 ÷ 99.9 km/h
Liquid delivered per hectare 1 ÷ 1999 l/ha
Surface area treated 0.001 ÷ 9999 ha
Liquid delivered 1 ÷ 99999 litres
Wheel circumference 0.01 ÷ 999.99 cm
Boom width 0.01 ÷ 99.99 m
Number of sections 1 ÷ 5 (BRAVO305)
Flow-meter constant 1 ÷ 99999 pulses/litre
Digital signals square wave
max 1500 pulses/second
Sensor power supply output Bravo power supply
Introduction
BRAVO30X is a computer capable of controlling distribution of
chemical products on sprayers equipped with valve control unit
from 1 to 5 section valves. It is composed of a control panel, to
be kept within the operator's reach, allowing control of all the
valves.
BRAVO30X can also operate in manual mode; in this case the
litres/hectare adjustment is made using the adjustment keys.
If necessary, it is possible during automatic spraying to adapt
delivery to treat aread of concentrated growth, temporarily or
increasing or decreasing the dosage by ±50%.
The large display of the BRAVO30X allows the operator to keep
a constant eye on all data relating to the operation in progress,
e.g. speed of the vehicle, the litres/hectare sprayed, total
surface area treated and the quantity of liquid sprayed.

5
Illustration of control panel
A
S
C
B
Ok Auto
USER
Esc
32145
5G
P
F
4
321
M
R
T
T
D
Main assembly diagram
A. Control panel
B. Starter key
S. Speed sensor
C. Magnets
M. Pressure sensor (opt.)
F. Flowmeter
R. Foam marker
D. Loading pump
T. Filling up flowmeter
(or rpm sensor)
G. General valve
P. Adjustment valve
1 - 5 Section valves
fig.1 assembly diagram
The sensor (S) detects the speed of the tractor by means of
the magnets (C) and at the same time sends the data to the
flow-meter (F) and/or pressure trasducer (M) so that the
control panel (A) can handle the control unit.
BRAVO30X has a large backlit multifunction display on which
the user can display all the data defining the treatment in
progress.
6 function keys at the side of the display allow the user to view
and set the distribution parameters on the display, together
with the other keys on the panel.
Below, the function keys are identified by the names F1...F7.
Description of keys and symbols
The following is the list of the functions provided by the keys
and the meanings of the symbols shown on the display:

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Controlkeys
Distribution value setting
Alternates display of the following data on the display:
Distance travelled
Time worked
Surface area treated
Access to the user programming menu
Alternates display of the following data on the display :
Tank level
Liquid distributed
Batteryvoltage
Alternates display of the following data on the display :
Flow-rate
Pressure
Rpm
Allows nozzle selection
Activates the left-hand side of the foam marker
Activates the right-hand side of the foam marker
fig.2 BRAVO305 control panel

7
Selects automatic or manual operation
Increase key
In Manual mode: Increases the quantity for
distribution
In Automatic mode :Increases the quantity for
distribution in steps of 5%
Decrease key
In Manual mode: Decreases the quantity for distribution
In Automatic mode :Decreases the quantity for
distribution in steps of 5%
Opens/Closes main valve
Controls opening/closing of sections
Increase/Decrease of quantity for distribution
Increases the digit of the value for modification
Decreases the digit of the value for modification
Moves on to the next digit
Confirms the value entered
Exits without modification
Adjustmentkeys
N.B.: For correct operation, if the number of switches on the
control panel is different from the number of section valves,
connect the cables as shown in the table below:
N Sections Switches to be used Cables to be connected
2 2, 4 2, 4
3 2, 3, 4 2, 3, 4
4 1, 2, 4, 5 1, 2, 4, 5

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Switching on
To activate BRAVO30X, position the starter key on "start";
BRAVO30X performs a display test, lighting up all the symbols
(fig.3). After two seconds it displays the software release
(fig. 4) and then switches to the main menu page (fig. 5).
Setting the contrast
To modify the display contrast, press the and keys to
increase or and to decrease.
Fig.3
Display test
Fig.4
Software release
Treatment data display
Number of active field
Distribution
speed
Man/Auto Indicator
Nozzletype
Flow-rate
Pressure
rpm
battery voltage
liquid in tank
tot. liquid distr.
tot. distance
tot. time
tot. surface area
Fig.5
Mainmenu page

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User Programming
Introduction
Before starting treatment, some settings are necessary to
inform the BRAVO30X about the characteristics of the vehicle
on which it is installed (by means of the wheel constant), the
characteristics of the liquid distributed (by means of the
density), the type of flow-meter connected and the type of
nozzlefitted.
Calculating the wheel constant
It may be necessary to change the wheel on which the speed
sensor magnets are installed, or the vehicle on which the
sensor itself is installed, meaning that the circumference of the
wheel changes.
In this case the constant on the BRAVO30X has to be changed
to allow it to measure the distance travelled correctly, and thus
make a correct calculation of the quantity of liquid delivered per
unit of surface area.
The wheel constant is the distance the vehicle travels for each
pulse received from the speed sensor.
The following is the procedure for calculating the wheel
constant:
Measuring the distance travelled in 10 turns of the wheel the
speed sensor is installed on (with the tyres inflated at working
pressure).
This is the formula to calculate the wheel constant:
Space travelled (m) x 10
= —————————————
number of magnets
Example:
- space travelled in 10 turns of the wheel = 25.4 m
- number of magnets installed = 10
The wheel constant is:
25.4 x 10
= ———————— = 25.4
1

10
Wheel constant menu
To modify the wheel constant, the user programming menu
must be accessed by pressing the key until the screen
shown on the left (menu 1.0) appears.
Manual setting
The key can be pressed to insert the value calculated for the
wheel constant directly: use the modification keys to change
and confirm the new value (the value set on the display is
25.40 cm/pulse).
Automatic setting
BRAVO30X is able to calculate the wheel constant automati-
cally, on the basis of the number of pulses received from the
speed sensor, when a distance of known length is travelled.
To carry out automatic the constant setting correctly, proceed
as follows:
1) Prepare the tractor with the tank 50% full
(the test can be carried out with just water ).
2) Drive the tractor to the start of the straight track of known
length and stop.
3) If the length of the track is different from that set, press
and use the modify keys to enter the new value.
4) Press the key beside the word AUtO and drive along the
track.
5) At the end of the track, stop the tractor and press the key:
BRAVO30X calculates the wheel constant automatically and
shows it on the display.
N.B.: The test should be carried out on ground of medium
hardness. If distribution is on very soft or very hard ground, the
difference in wheel diameter may lead to a difference in the
wheel speed reading, with a consequent error in calculation of
the distribution.
In this case, the wheel constant setting procedure should be
repeated.
Fig.6
Wheel constant display
Fig.7
Automatic setting of wheel
constant